One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
You may use it as is, or modify it as you like.
Source V. Hartikainen
A white version of the very popular linen pattern.
Source Ant Ekşiler
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
An alternative colour scheme for the original background.
Source Firkin
A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Derived from a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin